Spring shade-roller



(No Model.)

J. G. LAKE.

SPRING SHADE ROLLER; No. 310,595. Patented Jan. 13, 1885.

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J. CHRISTOPHER LAKE, OF AURORA, ILLINOIS.

SPRING SHADE-ROLLER.

SPECIFICATION forming art of Letters Patent No.310,595, dated January 13, 1885.

Application filed May 8, 1884.

To aZZ whom it may concern:

Be it known that I, J. CHRisrom-nan LAKE, residing at Aurora, in the county of Kane and State of Illinois, and a citizen of the United States, have invented new and useful Improvements in Spring Shad e-Rollers, of which the following is a full description, reference being had to the accompanyingdrawings, in which Figure l is a side view, some parts being shown in section. Fig. 2 is an end viewjFig. 2, a detail; Fig. 3, the same as Fig. 2, except that the position of the parts is changed. Fig. 3 represents the parts shown in Fig. 8 in a difi'erent position. Figs. 4 and 5 are modifications of the double-acting lock.

The object of my improvement is to provide a spring shade-roller with a lock having an extended bearing-surface, which I accomplish by the mechanism illustrated in the accompanying drawings, in which A represents an ordinary shade-roller; B, the spindle at one end, which may be made partly of wood and partly of metal; 0, a spring secured to the roller and spindle, as usual.

a is a shoulder upon the inside of the roller.

1) is a collar rigidly secured to the spindle, arranged to come in contact with the shoulder a.

c is a hub upon one side of the collar 12.

d is a projection from and upon the other side of the collar 12, which projection may be of the form shown in Figs. 1 and 2.

I make the parts Z) c (I together, casting them from suitable metal.

6 is a loose locking-piece, having an. on

tended bearing-surface upon the outside, its under side being formed so as to fit into the depression or recess in the part (7, as shown in Fig. 2. As shown, the lockingpiece c has at each end of its upper surface a little rise or projection, f.

I) is a cap over the end of the roller. The end of the roller which receives the spring is bored out, as usual, and the extreme end E may be regarded as a flange.

In Fig. at (1 corresponds with d in Fig. 2, but the depression or recess therein is angular instead of curved; and 6 corresponds with the part 6, but it is formed so as to fit into the depression in 17.

(No model.)

In Fig. 5 I have shown'a modification, in which the part 1 which takes the place of the look a in Fig. 2, is recessed on its under side, and the spindle is provided with a projecting part, II, which enters such recess in g.

The operation is as follows: It is sometimes necessary to remove the roller from its supporting-brackets, in which case the spring will be unwound, unless a lock be provided. This result is accomplished by my device in the manner shown in Fig. 3; but I have provided a lock having an extended bearingsun face, which comes in contact with the inside or flange portion of the roller, preventing wearing and injury to the roller, and provid ing a secure and efficient lock. Sometimes the shade is put upon the wrong side of the roller, or the roller is put into its brackets wrong side up, and then the spring is liable to be injured by turning it in the wrong direction.

Vith the device constructed as shown in Fig. 2, if the roller be operated in. the wrong direction, no injury can result, because the parts will be looked, as shown in Fig.

The operation of the devices, when made shown in Figs. 4 and 5, is'substantially the same as when made as shown in Fig. 2, in all of which a double-acting lock having an extended bearing-surface is shown. This lock does not interfere with the operation of the roller when it is placed in its brackets in the proper position, as shown in Figs. 1 and 2.

The loose piece described and the fixed part upon the spindle which engages therewith are so formed that when the spindle comes into certain positions the loose piece will be forced by the fixed piece into contact with the interior of the flange at the end of the roller, as indicated in Figs- 3, 8; By providing the loose piece with points on the bearing-surface, it will catch more readily and be less likely to slip.

I am aware that the spindles of shade-rollers have been provided with one or more cams, in connection with one or more balls or short rollers, for the purpose of locking the spindle, and I do not claim such construction.

The distinguishing feature of my invention consists in providing a loose piece, having a long bearing-surface, adapted to be forced into contact with the interior of the roller by a adapted to engage with the fixed piece and fixed piece upon the spindle, as fully shown by the same be moved into contact with said and described. flange in either of two directions in which the WVhat I claim as new, and desire to secure roller may be turned, substantially as deby Letters Patent, is as follows: scribed.

In a spring shade-roller, the combination, with a flange thereon, and a fixed piece on the spindle, of aloose double-acting locking-piece,

J. CHRISTOPHER LAKE.

\Vitnesses:

having on one side an extended bearing-sur- B. A. PRICE, 1o face, and an irregular surface on the other side I ALBERT H. ADAMS. 

